(19)

(11)

EP 4 051 935 A1

(12)

(43) Date of publication: 07.09.2022 Bulletin 2022/36 (21) Application number: 19950237.8 (22) Date of filing: 30.10.2019

(51) International Patent Classification (IPC):  F16K 11/07(2006.01) F16K 3/26(2006.01) F15B 13/04(2006.01) (52) Cooperative Patent Classification (CPC): F16K 11/0712; F16K 27/041; F16K 3/243 (86) International application number: PCT/NZ2019/050145 (87) International publication number: WO 2021/086201 (06.05.2021 Gazette 2021/18)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: Globalforce IP Limited Ponsonby, Auckland 1011 (NZ)	(72) Inventors: DUFF, William Michael 4310 New Plymouth (NZ) TERSON, Ian Craig 0620 Auckland (NZ) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)